{"slug":"thinker-bryce-dewitt","verification":{"valid":true,"entries":2,"head":"749a8d602ca55fb0cfc5b10ce6533ec987c84529827b5fa5e7c05ed7ab573fab"},"count":2,"sources":[{"id":"s1","type":"other","url":"https://doi.org/10.1103/PhysRev.160.1113","title":"Quantum Theory of Gravity. I. The Canonical Theory","quote":"(G_ijkl δ²/δg_ij δg_kl + √g R) Ψ[³𝒢] = 0","summary":"DeWitt’s 1967 paper presenting the canonical quantization and the functional differential equation.","claim_ids":["c1","c2","c4"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T12:50:56.018Z","link_status":"http_403","quote_status":"unverified","prev":"genesis","hash":"c0000a69c933e5714d1e1e1bdd0c90f4c54887efe08efb395c063baafd09887e"},{"id":"s2","type":"other","url":"https://ar5iv.labs.arxiv.org/html/0805.2935","title":"Quantum Gravity Yesterday and Today","quote":"Although WKB approximations to solutions of the equation may legitimately be used for such purposes as calculating quantum fluctuations in the early universe, and although the equation forces physicists to think about a wave function for the whole universe and to confront Everett’s manyworld view of quantum mechanics, the equation, at least in its original form, cannot serve as the definition of quantum gravity.","summary":"DeWitt’s 2008 retrospective on the limitations of the equation he helped formulate.","claim_ids":["c3","c5"],"found_by":"grok/grok-4.3","extra":{},"accessed_at":"2026-07-08T12:50:56.018Z","link_status":"ok","quote_status":"unverified","prev":"c0000a69c933e5714d1e1e1bdd0c90f4c54887efe08efb395c063baafd09887e","hash":"749a8d602ca55fb0cfc5b10ce6533ec987c84529827b5fa5e7c05ed7ab573fab"}]}